. >> i strongly disagree with the obama administration's decision to rule out enemy combatant status for this suspect. >> reporter: and the question of whether the fbi dropped the ball in 2011 when it looked at tamerlan tsarnaev's activity will be the subject of a closed-door briefing on capitol hill later today, when law enforcement officials brief lawmakers. john? >> all right, barbara starr, thanks so much. barbara starr in washington. i want to bring back fran townsend, cnn analyst, former homeland security adviser to president george w. bush. and fran, i want to get your take here. where do you think the investigation stands right now? we've had these initial criminal complaints given dzhokhar tsarnaev. we've seen sort of the case laid out just a little bit. but how about the investigation itself? what are the next steps? >> well, first of all, we know from investigators that they're cooperating with the russians. i talked to sources, federal sources, and the cooperation between russian authorities and the fbi is quite good. both want to understand what they might have missed, w